Rivet-setting machine



E. B. STIMPSON RIvET SETTING MACHINE Filed March 3, 1926 Dec.. 6, 1927.`

n Vsecured to a lever which is pivotally.

Patented Decr, 1,927'. Y

Y EDWIN B. stri(lussen,l or BRoKLYNiNELwYoa, nssrenonnnwrmn srIMrsoN COMPANY..oneBROQKLYN,. NEWY0RK. v

application fueamarch r3, 1926. Aserial No, 911373.

This intenties fentes" t rivet seeingy shownfat 21;' "Thelamination 22,- which is;

machines, andvhas for its' object. the provisionl of an-v improved "drive fori theV rivet feeding mechanism. .y

5 l'Ihepresent` applicationis alcontinuartion in part of my prior application Serial No. Y 49,239fled onAug'ust 10, 1925, in Vwhich the rivet feeding mechanism is set forth in detail. In the mechanism referred to the rivets are v 1o fed singlyfby a slide driven by a resilient arm.V It is important that the slide be given a positive movement to ensure proper .feeding of the rivets, but at the same time the drive must provide enough resilience to avoid 15 breakage lin case of a jam.

` In the invention herein disclosed a laminated spring isvso constructed and mounted as vto constitute a firm operatingv arm that will withstand breakage and at thel same 2O time provide enough resilience to protectthe rivet feeding mechanism. n

While I have disclosed a preferredy embodiment of the invention for purposes of illustration, it should be understood that the ystructure may be modiiedin various ways without departure from the true spirit and scope of the invention as hereinafter dened and claimed.

In the drawings,

setting machine showing the improved rivet feeding mechanism;V

Figure 2 is an enlarged `side elevation ofy the resilient driving arm; Figure 3 is a longitudinal section online 3-3 of Figure 2.

Referring more specifically to the draw.- ings, the rivet setting mechanism is indicated generally at 10. Rivets are fed from the 4 Vway of the chute 12. rlhe cut-off slide 13 is reciprocated by the resilient driving arm 14 to 4feed the rivets singly in proper timed relation to the operation of the rest of the machine. The upper end of arm 14 is .mounted at 16 and is oscillated bysuitable mechanism. i

, -The driving arm 14 is built up' of separate central two laminations 17 and 18 extend the full length of the arm andare notched as at 19. The lamination 20, which is on the side away from the feed chute 12, is shorter Vthan the central laminations and has its arm. The outer end of slide 13 is notched vat 29 to receive the forked end of arm 14.

Figure 1 is an elevation of part of `a rivet' hopper 11.to the rivet setting mechanism by spring laminas as shown in Fig. 3. The

lower endtaperedan'd bent 'inwardly as Vthe central lamination. As a result of this construction, when the arm 14 is bowed as shown in Fig. 1, the outer lamination will still continue to press against and support the centrall laminations. The innerv lamination is made shorter than the outer to provide a resilient support along the inner radius of the arm when flexed, thereby distributing the strain. 7 75 The lever'15 is'slotted at 26 and the arm Y, 14 is yloosely held in the slot by a screw 27 passing through an opening 28 in the It will benoted that the separate laminations comprising the spring arm 14 are not rigidly held at any point. They are entirely free to move with relation to each other or with relation to the rocking lever 15 or the slide 13. VAt the same time the? loose riveting and the manner ofattaching the spring to the operating parts causes the laminations to act concertedly as a resilient arm.-As the arm is rocked by the lever 15 it positively moves the cut-offslide in both directions of its reciprocation.

What 'I claim is: f A 1. In a rivet setting machine, a rivet setting mechanism,a rivet supply chute, a cutoff slide cooperating with the rivet supply chute, an oscillatable lever, a laminated spring arm `loosely connected lto Vthe' lever and tothe cut-olf slide, and means for mounting the laminations of said spring arm so that they` are rfreely movable with relation to each other.

2. In a rivet setting machine, rivet setting mechanism, a rivet supply chute, a out off slide cooperating with the rivet supplylo Y chute,'a laminated spring arm for movingl said cut-olf slide, and means for mounting f the laminations of said spring arm so that they are freely movable with relation to each other. l

3. In" amrivetx setting maehineurivet set-` ting mechanism@ arivet su 1y fchute; :if-cut off slide cooperating with t e rivet supply chute, :L laminated spring arm for moving sedcutfo' slide,M andi-means" for niounciiig` the laminations ot said spring arm-soth'nt they are freely movable with relation .n to.

each other and with relation to the ipaxts with which the arm contests n 4. In n rivet setting machine, rivet setting meehenisnL-divetfsu chute;` :1` cute o# slide coopeiatingnwtlnthe rivet" supply chute, and ,alamimlted splzing;amriforanuovv` ingnsaid` lent-ofi? slide `having e-mcentu'al @1mi-f nation and outer laminations the lowlerndszf of-wh.i.ch aref bowed:V inwardly` t the centrallaminatim, n i

5. In 4awrivebsetting,inaxzhineyjw rivet setting members, a chute along" whichn rivets leveiwpivoted linternmdiute its ends for actuating the Spring, one urnl of thelevei being longlmlxnally slotted tot provide 1Q-seals for thegothelnenrl offthe spring, nieanetoielnountf l; illgisthe s nmgfloosely 1n said-slot,midimeann1 for osci] uiting the lever. i I Iii: teetunonywhereoiir? ax myvsignatnxe. 

